.nav_header .mui-bar-nav {
  position: static;
  background-color: #ff841d;
}
.nav_header .mui-bar-nav .back {
  color: #fff;
}
.nav_header .mui-bar-nav h1 {
  color: #fff;
  font-size: 18px;
}
.nav_header .mui-bar-nav .download {
  color: #fff;
  font-size: 14px;
  display: flex;
  flex-direction: column;
  padding-top: 10px;
  align-items: center;
}
.nav_header .mui-bar-nav .download em {
  font-style: normal;
  transform: scale(0.5);
  margin-top: -2px;
}
